baber/WOPTO huggingface dataset:
Patent GB-1479233-A (GB)
Title: Memory clocking system
IPC: G06F1/06
Filed: 1975-08-04
Abstract: 1479233 Digital data storage ROCKWELL INTERNATIONAL CORP 4 Aug 1975 [9 Sept 1974] 32571/75 Heading G4C [Also in Division H3] Memory clock signals defining separate read and write periods within a clock cycle include a refresh clock pulse (to refresh the stored information) occurring between each write period and the next read period. A (known) cell of a memory to which the invention can be applied is shown in Fig. 1 and has a read and boost field effect semiconductor metal oxide capacitor (variable capacitance) 26, a read and boost FET 22, an isolation FET 24, a temporary storage capacitor 20, and an address FET 18, an address line 12, data bus (for read and write) 14 and read clock line 16 being also shown. In each clock cycle, including a read period and a write period, two clock pulses are supplied to read clock line 16, one in the read period for read and refresh and one after the write period for refresh. Fig. 3 shows a circuit for producing these two clock pulses per cycle, the two pulses being P1 and P2 in Fig. 4, in response to one pulse per cycle at each of # 1+2 , # 3+4 , # 4 . The pulses are negative, pulse-absence being zero volts. Fig. 3 uses P channel enhancement mode FETs, and consists of (from the left) a delay circuit 105 (having a capacitor 106 charged via 102 and discharged more slowly via 104), two ratio circuits 109, 113, a clocked clamp circuit 151 (including a ratio circuit 153), a bootstrapped ratio circuit 117 (including a bootstrap circuit 121), a 3-input gate circuit 125, a bootstrapped ratio circuit 129 (including a bootstrap circuit 131) and a power amplifier 136. The bootstrapped ratio circuits 117, 129 operate as inverters. At time T0, # 1+2 , # 3+4 , # 4  are all up (ground), 102, 104, 108, 110, 114 are off, 112 is on, and since 154 is on and 152 off, 150 is on, and so 116, 124 are off, 126 is on and 128 is off. At time T1, # 1+2  goes down, so 102 comes on to charge 106 and 108 comes on, 112 goes off. At T2 # 1+2 , comes up, and 102 goes off. At T3, # 3+4  goes down, 152 comes on so 150 goes off, and also 126 comes on to bring 128 on, whereupon after a delay in power amplifier 136, the read clock output # R  goes up at T4. At T5, # 4  goes down so 104 goes on so 106 starts to discharge, and also 110, 114 come on, so 116, 124 come on, and then 126 goes off, so 128 goes off, whereupon after a delay in power amplifier 136, # R  goes down at T6. At T7, 106 has discharged enough to turn off 108 and so turn on 112, so 116, 124 turn off and 126 is turned on, so 128 turns on, and # R  comes up at T8. At T9, # 3+4  and # 4  come up, 104, 110, 114 and 152 turn off, so 128 turns off and at T10, # R  goes down. The P channel devices could be replaced by N channel devices, using a positive voltage source at 30 instead of the negative. Integrated circuitry may be used, the invention reducing manufacturing reject rate.
Patent GB-1312677-A (GB)
Title: Rotary pneumatic torque tool such as a non-impacting nut runner or screw driver
IPC: B25B23/145
Filed: 1970-07-06
Abstract: 1312677 Screwing up nuts &c ATLAS COPCOAB 6 July 1970 [7 July 1969] 32604/70 Heading B3N [Also in Division F2] A rotary pneumatic nut runner or screwdriver has means for automatic torque shift and comprises a motor unit 1 including a speed reducing gear having reduction gear steps, 5, 6, 7, a clutch sleeve 12 drivingly connected to the last gear step 7 for transmitting high torque, an output shaft 14 coaxial with and rotatably mounted in one direction relative to said clutch sleeve member and connectable to means 3 for engaging a threaded member to be fastened, an input or driving shaft 9 coaxially and rotatably journalled relative to said clutch sleeve member and connected to the motor unit at a point preceding the last gear step 7 for transmitting low torque, a torque transmission limiting coupling 18a, 18c provided between said driving shaft 9 and said output shaft 14, and a freewheel coupling 22, 23 located between the clutch sleeve member 12 and the output shaft 14, being adapted to effect an automatic shift from low torque to high torque when the predetermined maximum torque of the torque transmission limiting coupling is exceeded. The freewheel clutch 22, 23 and the torque limiting clutch 18a, 18c are positioned on opposite sides of a central bearing 17. Tooth rim 18c is biased into engagement with tooth rim 18a by a spring 26. The rim 18c can be held disengaged from rim 18a by balls 27 which are operated by a rod 28 whose movement is controlled by a push-rod 29 via a spring 30. Rod 29 is engageable with a nut to be fastened by a piston 40. The freewheel coupling 22, 23 comprises back stop elements (24), Fig. 3 (not shown). In operation means 3 engages a fastener which pushes piston 40 rearward which in turn pushes rod 29 rearwardly. Spring 30 is compressed which attempts to move rod 28 so as to force balls 27 outward. But as rim 18c is engaged with rim 18a the groove into which the balls engage is not suitably positioned. Motor 1 is activated and shaft 9 drives spindle 14 via the clutch 18a, 18c at high speed but low torque. At the predetermined torque rim 18c is forced away from rim 18a and balls 27 engage in sleeve 18b to lock rim 18c in a retracted position. The clutch sleeve 12, which has been idling relative to the output shaft 44 now takes over the drive of the shaft through the freewheel couplings 22, 23. This occurs because the back stop members are locked and act as driving members. A balancing block comprises a clamp 43 and a carrying ring 44. To absorb reaction torque a stay 47 has a sleeve 47a which can grip an already fastened nut. A release valve 49 and a head valve 48 control the function of the nut fastener.
Patent GB-994459-A (GB)
Title: Improvements relating to electrical communication systems
Inventor: STIRLING HAROLD JAMES
IPC: H04Q3/52
Filed: 1960-09-22
Abstract: 994,459. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Sept. 19, 1961 [Sept. 22, 1960], No. 32617/60. Heading H4K. In a system using earth return, each subscriber's line circuit being coupled by a transformer to a link path forming part of the speech path, a flow of direct current in a line circuit to signify a calling condition thereof brings about the operation of a relay in the calling line circuit and is caused to modify the potential at an intermediate point in the associated link path, thereby producing a calling signal identifying the calling line circuit to common control equipment. As shown, Fig. 1, the flow of direct current in the looped line wires l1, 12 of a calling subscriber operates relay RA and also causes the potential at the base of a transistor CT to become sufficiently negative to render the transistor conducting, thereby producing a calling signal which identifies the calling substation to a selective electrical marking arrangement M of the type described in Specification 901,837. This operates relay RB to connect common marker equipment CE to the link path LP which is thereupon extended through a local concentrator LC comprising an array of four-layer diodes D, as described in Specification 881,172, to a free supervisory link circuit SLC and register. Return of positive potential from SLC, as described in Specification 994,458 cuts off the calling transistor CT. In a modification, Fig. 2, the calling transistor CT is made conductive by the operation of the impulsing and answering relay RA on completion of the calling loop.
Patent GB-691309-A (GB)
Title: Improvements in or relating to air-conditioning devices, particularly for vehicles
IPC: B60H1/00
Filed: 1949-12-20
Abstract: 691,309. Ventilating vehicles. O'SHEI, W. E. March 13, 1951 [Dec. 20, 1949], No. 32627/49. Class 137 An air-heating and circulating device, particularly for vehicles, comprises a rotary fan 7, a casing 2 with openings 16, 17 in the region of the plane of rotation of the fan through which openings air is delivered centrifugally to the passenger space, a heater. 4 connected, for example, to the cooling-water system of the engine, so that air passing from the inlet 3 to the fan is warmed, and air outlets 19 in the top of the casing which are connected to defrosting means for the windscreen. The fan is driven by a motor 8 carried by brackets 9, 10 from a supporting ring 11. A speed-controlling resistance 12 is in the motor circuit, the heat from which is transferred to the air. The device may be attached to the vehicle by bolts 21 which are received in slots in the casing 2 whereby transverse adjustments are per mitted. The heater is shut off when it is desired to circulate cold air.
Patent GB-1515746-A (GB)
Title: Impact energy absorbing apparatus and vehicle steering column assembly including same
IPC: F16C33/38
Filed: 1975-08-05
Abstract: 1515746 Absorbing energy by deformation TOYOTA JIDOSHA KOGYO KK 5 Aug 1975 [29 Aug 1974] 32635/75 Heading F2S [Also in Division B7] Impact energy absorbing apparatus 10, used in a collapsible steering column around a telescopic inner steering shaft 7, includes two cylindrical members 1, 2 connected for relative telescopic movement, rolling elements 4 (accommodated in a cage 3) press fitted between the members 1, 2 at their telescopic connection, guide means 6 formed in one or both of the members 1, 2 to extend from the telescopic connection axially of the members 1, 2, and a further rolling element 5 received snugly but without pre-stressing in the guide means 6 at the telescopic connection. The elements 4 are disposed in annular rows and the element 5 is axially spaced from all of these rows. In an impact, the ball elements 4 cause plastic deformation of the surfaces of members 1, 2 while the ball element 5 initially moves freely in the guide 6 until the end of the guide is reached whereupon element 5 also deforms the members 1, 2 to absorb further energy. The guide 6 may be a groove or slit opening formed in one or both of members 1, 2 and further guides of differing lengths may be provided.
Patent GB-324999-A (GB)
Title: Improvements in and relating to transformer connections
IPC: H02M7/06
Filed: 1928-11-09
Abstract: 324,999. British Thomson-Houston Co., Ltd., and Read, J. C. Nov. 9, 1928. Vapour and vacuum or low-pressure apparatus, arrangements of; polyphase transformers. - An arrangement for feeding mercury arc and like rectifiers with 12-phase current comprises two transformer sets 8, 9 the primaries 6, 7 of which are series-connected and arranged to produce fluxes 30‹ apart whilst the secondaries each comprise two groups 10, 11 and 12, 13 of star-connected 3-phase windings connected to the rectifier anodes and having their neutral points connected by interphase transformers 14, 15, the mid-points of which are interconnected to form the negative side of the D.C. circuit. Triple harmonic flux is substantially eliminated from the cores of the main transformers either by dispensing with unwound legs which would form a low reluctance path for this flux or by providing delta-connected auxiliary windings on the cores. Alternative arrangements of primary windings which may be used for producing fluxes 30‹ apart in the two transformer sets comprise a series zig-zag delta connection, Fig. 3, and a series star arranement, Fig. 4, in which one set only comprises zig-zag connections.
Patent GB-1330926-A (GB)
Title: Stereophonic receiver
IPC: H04B1/16
Filed: 1971-07-13
Abstract: 1330926 Stereophonic radio receivers SONY CORP 13 July 1971 [13 July 1970] 32820/71 Heading H4L  A stereophonic radio receiver is provided with means for automatically switching from stereo to mono reception in the presence of noise above a predetermined level. As shown in Fig. 1, the receiver includes the usual tuner 2, I.F. amplifier 3, discriminator 4 and stereo demodulator 31 including a pilot signal filter 10 and frequency-doubler 11 for reconstituting the subcarrier. A band-pass filter and amplifier 12 derives from the I.F. amplifier 3 an I.F. signal lying within the straightline range of the discriminator characteristic, which is rectified and shaped to provide a gating signal S1 for a gate 13, no output being provided when the input signal level is below a predetermined value. A band-pass filter 14 in a noise detector 25, Fig. 3 (not shown), passes signals above the range of the composite stereo signal which are rectified in a circuit 15 having a hysteresis characteristic, shaped at 16 and supplied as a gating pulse S2 to the gate 13. The circuit 13 is arranged to produce an output only when signal S1 is present and there is no signal S2 and this controls a switch SW to put the receiver in the stereophonic mode of operation. When supplied with both signals S1 and S2, with S2 only or with no gating signals, the receiver is switched to the monophonic mode. The hysteresis characteristic ensures that when noise above a predetermined level has been detected the receiver continues to operate in the monophonic mode until the noise drops to a predetermined lower level thus preventing excessive switching between the two modes.
Patent GB-633591-A (GB)
Title: Improvements in or relating to ventilation equipment
IPC: F24F13/062
Filed: 1947-12-12
Abstract: 633,591. Ventilators. FITT, T. C. Dec. 12, 1947, No. 32861. [Class 137] An air diffuser comprises a number of main partitions 25 ... 31 forming diverging passages of elongated section and subsidiary partitions 37 ... 42 extending between them at the end near the neck of the diffuser whereby the air flow some distance away is almost imperceptible and its direction opposite to that through the diffuser. The partitions 37 ... 42 which are mounted on curved wires or rods 43 replace the wire screen of the ventilator described in Specification 566,605 ; preferably they are each disposed nearer to the outer of the adjacent main partitions. Or two strips may be located between each pair of main partitions. Heaters 70, 71 may be disposed in the inflow conduits 13, 14 of diffusers, 15, 16, arranged above operatives' devices 17, 18, such as clerks' desks and an extractor 24 may also be provided, or the devices 17, 18 may comprise washing or ironing machines in a laundry.
Patent GB-1385750-A (GB)
Title: Installation for ultrasonic cleaning of tubes in liquid
IPC: B08B3/12
Filed: 1972-07-13
Abstract: 1385750 Cleaning tubes by vibrating same L M SEDLOV 13 July 1972 32873/72 Heading F2N A tube 3 is cleaned by ultrasonic vibrations imparted by the radiator rods 2 of magnetostrictive devices 1, flushing fluid being present in the area of the ultrasonic field, and the tube is moved axially by the devices 1, the angular position of each of the latter relative to the tube being adjustable by means 15-18 to achieve the desired rate of tube movement. As shown, the tube ends are mounted in carriages 5, 6. The flushing fluid system is closed, fluid passing from a reservoir 10 through a hose 7 and the tube 3, and from thence via a drain 8 back to the reservoir. The fluid may also be supplied to the outer surface of the tube 3. The tube may contain components 26, also to be cleaned. The tube may be curved, Fig. 3 (not shown). The radiators 2 of the two converters may be positioned in two respective planes which lie on opposite sides of the tube axis, Fig. 5 (not shown), so that rotation, as well as axial movement, is imparted to the tube.
Patent GB-384427-A (GB)
Title: An improved ratchet clutch for roller type lawn mowers
IPC: A01D34/47
Filed: 1931-11-27
Abstract: 384,427. Lawn-mowers. MUMFORD, R. R., The Bungalow, Woolley Road, Matlock, Derbyshire. Nov. 27, 1931, No. 32880. [Class 6 (ii).] A ratchet clutch of the sliding-pawl type is provided at the adjacent ends of each half roller of a roller-type lawn-mower, the pawls or pins being slidable through the shaft (not shown) to coact with ratchet teeth formed either in a hub c, Fig. 1a, integral with spokes e, or in a separate bush c<1>, Fig. 2, mounted in the spokes, or in a flat collar c<2>, Fig. 3, secured by screws d against the spokes. Aligned halfround notches a, b cast in the meeting edges of the roller halves and hubs &c. form oiling- holes for the clutches. The Provisional Specification describes the use of more than one pawl of round or other section arranged in line in each clutch, and of a lubricant-retaining closure.
Patent GB-410847-A (GB)
Title: Method of marking rubber garments and products obtained thereby
IPC: B29C37/00
Filed: 1932-11-21
Abstract: 410,847. Signs. MAGYAR RUGGYANTAARUGYAR RESZVENYTARSASAG, 17, Kerepesi-Ut, and JARMAY, Z. DE, 29, Benczur-ucca, both in Budapest. Nov. 21, 1932, No. 32893. [Class 3 (ii).] Vulcanized rubber garments, such as bathing caps or belts, are marked with separate symbols, such as letters, of rubber or rubberized fabric, each symbol being provided with an integral base of larger area than the symbol and having at least one straight edge. The bases are attached to the garment by an adhesive, the straight edges serving as guides to position the symbols. The garments and the markings may have a fibrous coating applied to one or both sides.
Patent GB-933378-A (GB)
Title: Improvements in or relating to apparatus for transporting articles
IPC: B65G49/08
Filed: 1958-10-15
Abstract: 933,378. Rollerway and endless conveyers. REDLAND TILES Ltd., and A. H. HARRIES. Oct. 12, 1959 [Oct. 15, 1958], No. 32974/58. Class 78 (1). Apparatus for transporting articles, e.g. tiles, from a production line to an oven in batches for curing, comprises means for conveying the articles in a succession along a path to a transfer station, and means for moving a support, e.g. a crate, in steps along a second path which is transverse to the first path and passes through, or is immediately adjacent to, the transfer station, the arrangement being such that one or more articles is or are transferred at the station from the conveying means to the support between successive steps of movement of the latter. Each tile is supported on a pallet 11, Fig. 4, and each batch of tiles is conveyed to and from the oven in a long crate 12, Fig. 3, provided with a series of opposed horizontal rails 15 for supporting the pallets between them. The crates from the oven approach the unloading and loading apparatus on a roller conveyer 22 and are returned to the oven by a lower roller conveyer 80. Each crate is lowered from one conveyer to the other by a pair of endless chains 50 provided with dogs 53 and is held against the chains by rollers 95 and a skid 96. When a crate leaves the conveyer 22, it rests on top of a crate already supported by dogs 53. When the lower crate commences to descend, the next pair of dogs 53 move round the upper chain wheels 49 into position to support the upper crate. The wheels 49 are fast on a shaft 43 which is driven by an electric motor 41 when a switch 103, Fig. 6, is actuated. This switch and a switch 104 are actuated in turn by a projection 102 on a radial arm 120 which is fast on a shaft 60. A sprocket-wheel 58 and a crank 61 are also fast on the shaft 60. The sprocket 58 is driven by chain-and-sprocket gear from an electric motor 55 when the switch 40 is actuated. The crank 61 is connected by a connecting rod 62 to a push rod 63 of rectangular cross-section which moves horizontally. A trip-catch 68 is mounted on the end of the rod 63 to engage behind the last pallet for a rack of a crate and pushes it on to the rack. The pallets move along the runway 31 leading from the belt conveyer 30 which brings the tiles from the making machine. The runway extends towards a crate at the same level as the uppermost racks thereon. A part 36, Fig. 4, of each pallet engages a sprocket 37 as it passes over it and rotates it by one tooth. As witch actuator 39 on the same shaft as the sprocket actuates a switch 40 twice in every revolution of the sprocket. When sufficient pallets have passed to fill the first rack of the crate, the switch 40 is actuated and stops the motor 32 driving the belt 30. The actuation of the switch also starts the motor 55 and the rod 63 is moved to push the pallet on to the rack.
Patent GB-1236635-A (GB)
Title: Novel promoters for polyesters
Inventor: NOWAK MILTON
IPC: C08F283/01
Filed: 1968-07-11
Abstract: 1,236,635. Curing polyester resins. TROY CHEMICAL CORP. 11 July, 1968 [11 July, 1967], No. 33140/68. Heading C3P. Cured polyester resins are prepared by adding a promoter composition in solution form which comprises a solvent containing at least one wholly or partially water-miscible alcohol and water in an amount up to 40% of the total volume of solvent and from 0À1 to 5À0% by weight of vanadium acetylacetonate based on the total weight of the composition, to an unsaturated polyester resin (other than a polyester modified by fatty acids and drying oils), adding a catalyst to the resulting mixture, and allowing the mixture to stand until reaction is complete. In the examples unsaturated polyesters are cured using cobalt octoate, vanadium, zirconium and aluminium acetylacetonate, ethylene glycol monoethyl ether, water, methanol, methyl ethyl ketone peroxide, cumene hydroperoxide and dimethyl phthalate.
Patent GB-635866-A (GB)
Title: Improvements in or relating to cyanalkyl ether plasticisers and synthetic resin compositions plasticised therewith
IPC: C08K5/16
Filed: 1947-12-17
Abstract: Vinylidene chloride polymerization products, including copolymers thereof with minor proportions of one or more other polymerizable compounds (e.g. vinyl chloride, vinyl esters of organic acids, such as vinyl acetate, methoxybutyrate or laurate, esters of acrylic, a -chloroacrylic and a -methacrylic acids with alkyl and cycloalkyl radicals of six or less carbon atoms, such as cyclohexyl methacrylate, butyl acrylate or ethyl chloroacrylate, diesters of itaconic, maleic and fumaric acids with similar radicals, acrylonitrile, methacrylonitrile and crotononitrile) are plasticized by the addition of 5-20 per cent of their weight of a compound of the formula <FORM:0635866/IV (a)/1> (wherein X1 represents a phenyl or mono- or dichloro- or methyl-phenyl radical, R1 represents an alkylene radical of 2, 3 or 4 carbon atoms, to each of which carbon atoms is attached at least one hydrogen atom, and n is 1 or 0), e.g. a -methylbenzyl b -cyanoethyl, b -cyanoethoxyethyl, 4 - cyanobutyl and b  - cyanoisopropyl ethers, and a -methyl-p-chloro- and -2 : 4-dimethyl - benzyl b  - cyanoethyl ethers.  In examples, the plasticizers are incorporated with the polymers by stirring with acetone and then evaporating the solvent, and in some cases the product is extruded through a nozzle heated to 170 DEG  C. to form a monofilament.ALSO:Cyanoalkyl ethers of the general formula <FORM:0635866/IV (b)/1> (wherein X1 represents a phenyl or mono- or dichloro- or methyl-substituted phenyl radical, R1 represents an alkylene radical of 2, 3 or 4 carbon atoms, to each of which carbon atoms is attached at least one hydrogen atom, and n is 1 or 0) are manufactured by (a) condensing phenyl methyl carbinol, its glycol ether or their nuclear mono- or di-chloro- or-methyl substitution products with acrylonitrile (to give the b -cyanoethyl ethers), with methacrylonitrile (to give the 2-cyanopropyl ethers), or with allyl cyanide or crotononitrile (to give the b -cyanoisopropyl ethers); or (b) condensing styrene with 3-chloropropanol or 4-chlorobutanol and treating the resulting chloro-ethers with sodium cyanide (to give the 3-cyanopropyl and 4-cyanobutyl ethers).  The products are useful as plasticizers (see Group IV (a)).  In examples of method (a), the condensation is effected in the presence of sodium, in benzene solution or in the absence of a diluent.  In an example of (b), styrene is warmed with 4-chlorobutanol in the presence of p-toluenesulphonic acid and pyrogallol and the product is refluxed with sodium cyanide in aqueous ethanol.  Specifications 517,934; 575,137 and 603,817, [Group IV (a)], and U.S.A. Specification 2,280,792 are referred to. Nuclear mono- and di-chloro- and -methyl-substituted phenyl methyl carbinols are obtainable by hydration of the correspondingly substituted styrenes, or by reduction of the corresponding ketones, or by Grignard synthesis from the corresponding aldehydes.